Login

Cart

Your cart is empty
Seiko 5 Sports SRPG27K1 Field Watch Automatic | Black Dial | 4R36-07G0 | 39.4mm
Seiko

Seiko 5 Sports SRPG27K1 Field Watch Automatic | Black Dial | 4R36-07G0 | 39.4mm

Trusted by 25,000+ happy customers

Affordable & Reliable Shipping (Tracked & Insured)

10+ Years of Online Expertise

SKU: SRPG27
Technical specifications
Identification
Case number
4R36-07G0
Model number
SRPG27 / SRPG27K1
Brand
Seiko
Model name
5 Sports Field
Collection / line
Seiko 5 Sports
Year of model introduction
2021
Gender / target audience
Men's / Unisex
Movement
Calibre name / number
Cal. 4R36
Movement type
Automatic (self-winding + hand-wind)
Movement category
Mechanical automatic
Manufacture calibre (in-house)
Yes — Seiko SII in-house
Beat rate (bph)
21,600 bph
Frequency (Hz)
3 Hz
Jewel count
24 jewels
Number of components (parts)
Approx. 170
Winding method
Automatic bidirectional rotor + hand-winding via crown
Power reserve duration
Approx. 41 hours
Energy source
Mainspring (coiled steel spring)
Rotor material
Stainless steel rotor (Seiko branded)
Rotor type
Bidirectional Magic Lever system
Movement diameter (mm)
Approx. 27.4 mm
Movement thickness (mm)
Approx. 5.3 mm
Guaranteed daily rate
−35/+45 sec/day (rated) — typical real-world ±15 sec/day
Accuracy certification
Seiko internal standard
Escapement type
Lever escapement (Swiss-style)
Balance wheel type
Standard alloy balance wheel
Case and crystal
Case thickness / height (mm)
11.3 mm
Case shape
Round
Case material
Stainless steel 316L
Case finishing
Brushed flanks + polished lugs (mixed)
Caseback type
Exhibition / display (screw-in, mineral window)
Caseback material
Stainless steel + mineral exhibition window
Crown type
Push-pull (unsigned, plain)
Crown protection
Recessed crown guard at 4 o'clock (part of case design)
Screw-down crown
No — push-pull crown
Crystal type
Hardlex (Seiko proprietary hardened mineral glass)
Anti-reflective (AR) coating
No — Hardlex has no AR coating
Crystal shape
Flat
Hardness (Mohs scale)
~7 (Hardlex hardened mineral)
Dial and hands
Dial colour
Black (matte)
Dial material
Lacquered metal
Dial finishing
Matte flat
Hour markers / indices type
Arabic numeral hour markers (military-style, luminous)
Indices material
Stainless steel (with LumiBrite inserts)
Hour hand style
Arrow / sword baton
Minute hand style
Baton (with LumiBrite)
Seconds hand style
Baton (3 ticks/sec)
Hand material
Stainless steel (with LumiBrite)
Luminescent coating type
LumiBrite (Seiko proprietary)
Lume grade / quality
Standard LumiBrite
Lume on hands
Yes (hour + minute hands)
Lume on hour indices
Yes (all 12 applied indices)
Lume on bezel marker
No
Date window present
Yes — Day + Date at 3 o'clock
Date window position
3 o'clock (double aperture: day + date)
Day-date display
Yes — Day of week + Date (double window at 3)
Bezel and strap
Bezel type
Fixed smooth bezel
Bezel material
Stainless steel
Bezel colour
Silver (polished stainless)
Bezel insert material
No insert — integral polished steel
Bezel scale / graduation
No scale (smooth)
Bezel click positions per revolution
N/A — fixed
Uni-directional bezel safety
N/A — fixed bezel
Bracelet / strap type (original)
Stainless steel 3-link bracelet
Bracelet / strap material
Stainless steel 316L
Bracelet / strap finishing
Brushed and polished (mixed)
Lug width at case (mm)
20 mm
Clasp type
Three-fold deployant butterfly clasp with push-buttons
Micro-adjustment / fine-tuning
5-position link adjustment only
Functions and complications
Complications displayed on dial
Day + Date
Skeleton / open-heart dial
Yes — open exhibition caseback visible
Quick-set date
Yes — crown position 1 (quick date set)
Water resistance and protection
Water resistance rating (stated)
100 m / 10 ATM / 10 bar
Magnetic resistance (gauss)
Not specified (standard alloy movement — sensitive)
ISO 764 anti-magnetic certified
Yes
ISO 1413 shock resistance certified
Yes
Shock absorption system
Seiko Diashock (proprietary spring-clip shock jewel system)
Operating temperature range
0°C to 50°C (recommended)
Corrosion resistance
Good (316L stainless steel)
Salt water resistance
Yes (100m rating)
Hermetically sealed
Yes (100m water resist.)
Warranty and other
Manufacturer warranty (years)
2 years
Recommended service interval
5–7 years
Recommended retail price (RRP)
USD 315 / EUR 275
Limited edition
No (regular production line)
Production volume
Mass production (large volume; widely available)
Watch category / type
Dress-sport automatic (sports inspired)
Style
Casual sporty / field watch
Design inspiration / heritage
Military field watch tradition; smaller 39.4mm case for slimmer wrists; Arabic numeral dial
Heritage / iconic status
SRPG27 — field watch configuration in 5 Sports lineup; Arabic numerals vs. baton indices; 39.4mm suits smaller wrists

As an Amazon Associate, we earn from qualifying purchases.

SEIKO is known worldwide for its precision, reliability and craftsmanship in watchmaking.


Choosing a genuine SEIKO watch ensures the intended design, performance and quality standards of the brand.
A genuine SEIKO timepiece combines durable materials, precise movements and carefully engineered components to deliver long-term reliability and everyday wearability.

Seiko-OEM-dial-replacement-Genuine

Why choose a genuine SEIKO Watch?


✔️ Genuine SEIKO watches are manufactured according to the brand’s original specifications for quality, precision and durability.

✔️ Designed and assembled using brand-specific movements and components to ensure reliable timekeeping and long-term performance.

✔️ A genuine timepiece offers the authentic design, finishing and craftsmanship associated with the SEIKO brand.
Seiko-OEM-Watch-Parts-Replacement-Shop-Buy-Online

Availability and sourcing

➤ Availability may vary depending on model, production status and brand supply.

➤ Certain watch models may become limited or discontinued over time depending on brand production cycles.

Shipping & Returns

Let customers speak for us

from 2116 reviews
SPB265J1

Beautiful deep teal-green glacial ice dial

Anonymous
Seiko 6R3501C0XL1Z Dial SPB265J1 Prospex Ice Diver
Seiko 6R3501C0XL1Z Dial SPB265J1 Prospex Ice Diver
Fast shipping and great quality

The shroud took a little bit over a week to arrive, but it was pretty quick considering that I live in Australia, it came perfectly secured inside the packaging with the original Seiko part number label, super easy to replace and great quality. I hope that they stock them again soon to buy another one just in case I need it in the future.

Daniel Gonzalez
Shroud for Seiko Map Meter SKZ221K1, SKZ225, SKZ229, SKZ231K1, SKZ319, SKZ320 Black
Shroud for Seiko Map Meter SKZ221K1, SKZ225, SKZ229, SKZ231K1, SKZ319, SKZ320 Black
Best dial

Good genuine product

Anonymous
Seiko 6R3501A0XB13 Dial SBDC101 & SPB143J1 - 62MAS Prospex
Seiko 6R3501A0XB13 Dial SBDC101 & SPB143J1 - 62MAS Prospex

Tuyệt vời

Tâm Mai Đăng
Shroud for Seiko Map Meter SKZ221K1, SKZ225, SKZ229, SKZ231K1, SKZ319, SKZ320 Black
Shroud for Seiko Map Meter SKZ221K1, SKZ225, SKZ229, SKZ231K1, SKZ319, SKZ320 Black
Couldn’t do it without them!

So I like to mess with beat up watches found on various auction sites. They are often sad and neglected pieces therefore I have several ‘go to’ suppliers that have the hard to find NOS items required to bring the watches back to life. The pic shows all those a bunch of Seiko’s that I’ve found over the last few months that have needed saving … I couldn’t have done this without the input from Watch Plazza. The Pepsi BFK is the one that this bezel was purchased for.

Anthony
SEIKO PROSPEX KINETIC SKA369 ROTATING BEZEL 5M62-0BL0 SBCZ013 BLUE RED ORIGINAL
SEIKO PROSPEX KINETIC SKA369 ROTATING BEZEL 5M62-0BL0 SBCZ013 BLUE RED ORIGINAL
Perfect

High quality oem dial

Siklre
Seiko 6R3500S0XL23 Dial SPB299J1 & SBDC167 Prospex Save The Ocean
Seiko 6R3500S0XL23 Dial SPB299J1 & SBDC167 Prospex Save The Ocean
Certain Parts for 7549

My old Seiko tuna 7549 from 1981 needed some love instantly . By missing of Original 7549 parts
I ordered in this shop :
Hand Set for sbbn015
Double Dome hardlex
Glass gasket
Kanji day Wheel for 7c46

With those original parts the 7549 was replaced and improved by an 7c46

Good to have trustful Shops like watchplaza to bring my old tuna back to modern Standard

Thilo Britz
Seiko 0C2740B01 Dial Gasket 7549-7009 & 7C46 0AA0 Tuna Prospex
Seiko 0C2740B01 Dial Gasket 7549-7009 & 7C46 0AA0 Tuna Prospex
Perfect!

Cool looking dial. Will definitely order again soon! 🤗

Norman
Seiko 6R3501C0XL1Z Dial SPB265J1 Prospex Ice Diver
Seiko 6R3501C0XL1Z Dial SPB265J1 Prospex Ice Diver
Pink matte Apple bracelet looks nice

I like this pink matted Apple watchband very much. Glad that I bought STRPZ

Marjan
Apple Watch Band Pink Matte Stainless Steel – Series 11, 10, 9, SE 1 & 2, Ultra 3 & 4
Apple Watch Band Pink Matte Stainless Steel – Series 11, 10, 9, SE 1 & 2, Ultra 3 & 4
Great Magnetic Apple strap

This magnetic apple strap made of silicon is high quality. I would recommend it.

Jarn
Apple Watch Magnetic Silicone Band – Series 11, 10, 9, 8, SE & Ultra (38–49mm)
Apple Watch Magnetic Silicone Band – Series 11, 10, 9, 8, SE & Ultra (38–49mm)
Top!

High quality and fast shipping!

Siklre
Seiko Sumo Shogun Titanium SBDC029 Dial 6R15-01D0 Black SBDC029J - 28.5 mm
Seiko Sumo Shogun Titanium SBDC029 Dial 6R15-01D0 Black SBDC029J - 28.5 mm
Very nice

The quality is better than what I bought before. The seller is highly recommended. The workmanship is +

J
Apple Watch Band Stainless Steel – Series 11, 10, 9, 8, 7 SE, SE2 & Ultra
Apple Watch Band Stainless Steel – Series 11, 10, 9, 8, 7 SE, SE2 & Ultra
My Watch - Back To Life !

Watch Plaza offer the seemingly unbuyable - replacement rubber straps for Seiko Arctura watches. Thank you WP - I'm enjoying my watch again, the strap fits and works perfectly - 😀

Mr Paul G Osborne
Seiko Arctura Rubber Watchband 5M42-0E30 5M42-0E39 Strap Replacement 4GC9-B.A 19
Seiko Arctura Rubber Watchband 5M42-0E30 5M42-0E39 Strap Replacement 4GC9-B.A 19
John

I bought this black leather strap with red stitching as a compatible replacement for my Seiko SNL021. The genuine leather felt comfortable from day one and softened nicely after a couple of wears. Stitching is tidy, and the subtle red detail picks up the chronograph accents without shouting for attention.

Fit and finish are exactly what I hoped for. The watch sits neatly on the wrist and feels refreshed—ideal if your original band is tired. At this price, the value is strong. It’s not an original Seiko part, but the quality feels solid and it looks right at home on the SNL series.

Pros

- Genuine leather; comfortable for daily wear
- Clean look: black with red stitching
- Good value at the current price
- Clearly labelled as compatible with Seiko SNL029, SNL021 and SNL017

Cons
- Needed a short break-in period (a day or two)

If you’re after a Seiko SNL029 strap or SNL017 watch band in this colourway, this compatible replacement does the job gracefully.

John S
Watch Strap For Seiko SNL017, SNL021 & SNL029 Sportura Kinetic Chronograph
Watch Strap For Seiko SNL017, SNL021 & SNL029 Sportura Kinetic Chronograph
Top!

Top quality and fast shipping!

Siklre
Seiko 4R3604Z4XB1Z Prospex SRP777 Dial Black Turtle 4R36-04Y0 - SRP779K1, SRP787K1 & SRP789K1
Seiko 4R3604Z4XB1Z Prospex SRP777 Dial Black Turtle 4R36-04Y0 - SRP779K1, SRP787K1 & SRP789K1

100% High Quality

We source original watches and compatible watch parts through established supply channels and trusted manufacturers.

1+ Year Warranty on All Products

Warranty applies as described in our warranty policy. Brand warranty terms and service conditions may differ by product type.

Worldwide Fast Shipping

We deliver our products globally, including to the EU, USA, UK, Canada, Australia, and many more countries, with care and reliability.

Specialist in Watches, Straps, Parts and Accessories

WatchPlaza specializes in watches, watch straps, parts and accessories for a wide range of brands and references.